Clouds Picture Gallery

" alt="Nacreous (also known as mother of pearl or stratospheric) clouds. These clouds form at around 20km altitude in the ozone layer and are instrumental in the process of ozone depletion. Because of their altitude they remain illuminated by the sun, long after sunset on the ground.">

Nacreous (also known as mother of pearl or stratospheric) clouds. These clouds form at around 20km altitude in the ozone layer and are instrumental in the process of ozone depletion. Because of their altitude they remain illuminated by the sun, long after sunset on the ground.

" alt="Atmospheric effects on the clouds seen from an aircraft flying above them.">

Atmospheric effects on the clouds seen from an aircraft flying above them.

" alt="Wave clouds, also known as 'stack of plate' clouds. These are formed by air being forced to rise over a mountain range, with the moister layers condensing to form cloud.">

Wave clouds, also known as 'stack of plate' clouds. These are formed by air being forced to rise over a mountain range, with the moister layers condensing to form cloud.

" alt="Lenticular clouds at South Georgia, indicating lee-wave generation within the atmosphere. The waves are caused by stratified air flowing over the island. Taken from Barff Peninsula, South Georgia.">

Lenticular clouds at South Georgia, indicating lee-wave generation within the atmosphere. The waves are caused by stratified air flowing over the island. Taken from Barff Peninsula, South Georgia.